What is the [Configuratio\Banners] Value

What is the [Configuratio\Banners] Value

in an application I build I start the winscp client with a provided ini-file for pre-configuring it. But every time I connect to a server there is this start banner with the checkbox to further prevent the showing of this window.
I found out that the [Configuration\Banners] entry in the form of <username>@serveraddress=??? seems to prevent to show this start banner
But what exactly is the value behind the =. How can I create the value. Or how can I globaly turn off the starting banner?